Separate problem, separate thread... I'm also having intermittent heat in the 300D. Usually the heat will come on normally once the engine warms after a cold start. What usually happens next is after the cabin has warmed to the set temperature, the air from the vents will become very cool, though not so cold as direct unheated exterior air. Other times I don't ever get any "warm" air at all, just cold and sometimes lukewarm air. Engine temperature is normal.
Recently flushed the cooling system, after noticing low levels and tracing it to a leaking thermostat housing (replaced housing and thermostat), but this did not resolve the problem. Any likely suspects here? Allan -- 1983 300D 1966 230
